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Last seen: Aug 13, 2025
Can you post a picture of your LLH how much volume does it have? What is the flow speed in your primary circuit, go to service menu, running informa...
You are correct primary is the top right from the heat pump, secondary pumps round the rads you can’t break anything by turning them down. Turn prim...
If you have a mitsubishi preplumbed cylinder then its unlikely to be a low loss header, although that's what they call it, it has no volume its just a...
@jamespa, I can't check modulation but it will be running flat out but I think my is slightly undersized so don't really have any spare capacity to co...
Here is an example of what my 8.5kw Ecodan did last night when it was very damp and 1C outside. It defrosted every 50 mins, that takes 5 mins and ...
@grumpidoc so as it’s one zone you should only have that one pump for the heating. As I posted above you should be able to turn that all the way down...
Correction forgot to x 60 to get to L/min otherwise its in seconds
@grumpidoc Its from the mitsubishi databook see extract below Do you have an Ecodan preplumbed cylinder or a different model, a picture of your cy...
@alsocold123456 It doesn't sound like there is a problem to fix with your system that is pretty much what mine is doing in this damp cold weather. A...
@tallmarc stated noise levels are made at a defined outside temperature not the worst case which is what we currently have in the depths of winter, mi...
@ngillam Depending on your controller the pump speed for the HW can be controlled in 2 ways newer versions have pump speed in the service menu for bot...
For such a small space wouldn’t A2A be better than A2W and you get cooling in summer.
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